/*
 * IntervalThread.java July 2009
 *
 * Copyright (C) 2009, Quirino Zagarese <quirino@laszloitalia.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General
 * Public License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA  02111-1307  USA
 */
package org.eu4ria.core.hotdeploy;

public abstract class IntervalThread implements Runnable {

    private boolean active = false;

    private int interval = -1;

    private String name;

    private Thread runner;

    public IntervalThread(int intervalSeconds, String name) {

        this.interval = intervalSeconds * 1000;
        this.name = name;
    }

    public void start() {

        active = true;

        if (runner == null && interval > 0) {
            runner = new Thread(this);
            runner.start();
        }
    }

    public void stop() {
        active = false;
    }

    public void run() {

        Thread.currentThread().setPriority(Thread.MIN_PRIORITY);

        while (active) {
            try {
                doInterval();
                Thread.sleep(interval);

            } catch (InterruptedException e) {

            }
        }
    }

    public String toString() {
        return name;
    }

    protected abstract void doInterval();
}

